結果
問題 | No.1805 Approaching Many Typhoon |
ユーザー | Shirotsume |
提出日時 | 2022-01-12 20:29:49 |
言語 | PyPy3 (7.3.15) |
結果 |
AC
|
実行時間 | 49 ms / 2,000 ms |
コード長 | 2,156 bytes |
コンパイル時間 | 344 ms |
コンパイル使用メモリ | 82,176 KB |
実行使用メモリ | 66,628 KB |
最終ジャッジ日時 | 2024-11-15 15:04:31 |
合計ジャッジ時間 | 2,609 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 36 ms
52,528 KB |
testcase_01 | AC | 39 ms
54,376 KB |
testcase_02 | AC | 35 ms
52,900 KB |
testcase_03 | AC | 36 ms
53,384 KB |
testcase_04 | AC | 35 ms
53,692 KB |
testcase_05 | AC | 36 ms
52,708 KB |
testcase_06 | AC | 36 ms
52,700 KB |
testcase_07 | AC | 35 ms
53,632 KB |
testcase_08 | AC | 34 ms
53,132 KB |
testcase_09 | AC | 35 ms
54,264 KB |
testcase_10 | AC | 38 ms
54,256 KB |
testcase_11 | AC | 37 ms
52,528 KB |
testcase_12 | AC | 36 ms
53,632 KB |
testcase_13 | AC | 36 ms
53,136 KB |
testcase_14 | AC | 36 ms
52,868 KB |
testcase_15 | AC | 36 ms
53,116 KB |
testcase_16 | AC | 35 ms
53,212 KB |
testcase_17 | AC | 37 ms
53,464 KB |
testcase_18 | AC | 36 ms
53,616 KB |
testcase_19 | AC | 36 ms
53,088 KB |
testcase_20 | AC | 35 ms
52,740 KB |
testcase_21 | AC | 36 ms
53,188 KB |
testcase_22 | AC | 35 ms
54,256 KB |
testcase_23 | AC | 34 ms
53,780 KB |
testcase_24 | AC | 34 ms
52,744 KB |
testcase_25 | AC | 35 ms
53,280 KB |
testcase_26 | AC | 35 ms
53,856 KB |
testcase_27 | AC | 35 ms
53,092 KB |
testcase_28 | AC | 49 ms
66,628 KB |
testcase_29 | AC | 49 ms
65,196 KB |
testcase_30 | AC | 49 ms
66,020 KB |
testcase_31 | AC | 49 ms
66,436 KB |
testcase_32 | AC | 37 ms
53,444 KB |
testcase_33 | AC | 36 ms
53,152 KB |
testcase_34 | AC | 37 ms
54,380 KB |
testcase_35 | AC | 43 ms
61,040 KB |
testcase_36 | AC | 45 ms
62,896 KB |
testcase_37 | AC | 35 ms
54,024 KB |
testcase_38 | AC | 37 ms
52,344 KB |
ソースコード
class dsu(): n=1 parent_or_size=[-1 for i in range(n)] def __init__(self,N): self.n=N self.parent_or_size=[-1 for i in range(N)] def merge(self,a,b): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) assert 0<=b<self.n, "0<=b<n,b={0},n={1}".format(b,self.n) x=self.leader(a) y=self.leader(b) if x==y: return x if (-self.parent_or_size[x]<-self.parent_or_size[y]): x,y=y,x self.parent_or_size[x]+=self.parent_or_size[y] self.parent_or_size[y]=x return x def same(self,a,b): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) assert 0<=b<self.n, "0<=b<n,b={0},n={1}".format(b,self.n) return self.leader(a)==self.leader(b) def leader(self,a): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) if (self.parent_or_size[a]<0): return a self.parent_or_size[a]=self.leader(self.parent_or_size[a]) return self.parent_or_size[a] def size(self,a): assert 0<=a<self.n, "0<=a<n,a={0},n={1}".format(a,self.n) return -self.parent_or_size[self.leader(a)] def groups(self): leader_buf=[0 for i in range(self.n)] group_size=[0 for i in range(self.n)] for i in range(self.n): leader_buf[i]=self.leader(i) group_size[leader_buf[i]]+=1 result=[[] for i in range(self.n)] for i in range(self.n): result[leader_buf[i]].append(i) result2=[] for i in range(self.n): if len(result[i])>0: result2.append(result[i]) return result2 import sys input = lambda: sys.stdin.readline().rstrip() nm = list(map(str,input().split())) n = int(nm[0]) m = int(nm[1]) sg = list(map(str,input().split())) s = int(sg[0]) g = int(sg[1]) uv = [] for i in range(m): uv.append(list(map(int,input().split()))[:2]) u = int(input()) I = list(map(int,input().split()))[:u] U = dsu(n + 1) for u, v in uv: if (u in I) or (v in I): continue else: U.merge(u, v) print('Yes' if U.same(s, g) else 'No')